US10859189B2 - Joining method for tubular components - Google Patents
Joining method for tubular components Download PDFInfo
- Publication number
- US10859189B2 US10859189B2 US12/566,294 US56629409A US10859189B2 US 10859189 B2 US10859189 B2 US 10859189B2 US 56629409 A US56629409 A US 56629409A US 10859189 B2 US10859189 B2 US 10859189B2
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- US
- United States
- Prior art keywords
- component
- joining element
- section
- ring
- axial end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 14
- 229910001566 austenite Inorganic materials 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009924 canning Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
- F16L13/0218—Welded joints having an inner or outer ring
- F16L13/0227—Welded joints having an inner or outer ring having an inner ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
- F01N13/1844—Mechanical joints
- F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
- F01N2450/22—Methods or apparatus for fitting, inserting or repairing different elements by welding or brazing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49906—Metal deforming with nonmetallic bonding
Definitions
- the present invention relates to a method for the joining of two components of which at least one is tubular, and more specifically, a method of joining two components in an exhaust system of an internal combustion engine.
- the invention additionally relates to an assembly for an exhaust system of an internal combustion engine with two components of which at least one is tubular and which are joined with each other.
- the invention relates to a joining element for such a joining method or for such an assembly.
- this procedure results in that the cross section of the calibrated housing varies within a wide range.
- this varying cross section of the calibrated housing now has to be joined gas-tight with a predetermined cross section of the funnel which only varies in comparatively close dimensional tolerances.
- this creates gaps which are larger or smaller in size that have to be closed with weld seams. This is mechanically difficult to realize so that manual rework is required.
- this can lead to comparatively large axial transition regions which have to be made available for tools during sheet metal forming and with axial tolerances of the components with usual forming.
- Embodiments of the present invention deal with the problem of stating an improved embodiment for a joining method of the kind mentioned at the outset or for an assembly with two components joined with each other which is more preferably characterized in that automated manufacture with high quality of the joint can be realised in a simpler manner.
- Embodiments of the invention are based on the general idea of joining two components with the help of a ring-shaped joining element which comprises at least one outer cone with which it can be pressed into an axial end section of the one component of tubular design in such a manner that the end section of the one component is widened along this outer cone.
- a circumferential weld seam can now be produced on this widened end section which joins the joining element with the one component.
- the respective other component can then be attached to the joining element on the side facing away from the one component.
- a ring-shaped closed contact between the joining element and the one component can be realised for the end section of the one component widened with said outer cone in that the widened end section of necessity comes to bear flat on the outer cone of the joining element.
- a high-quality weld joint can be produced comparatively easily which joins an axial end of the widened end section with the joining element.
- the other component depending on design—can likewise be joined with the joining element by way of such an outer cone or in conventional manner for example by way of a predetermined joining cross section of the joining element or by way of a flange formed on the joining element.
- the connecting element with its outer cone can be pressed into the end section of the one component so far until the axial end of the end section reaches a predetermined cross section or until the axial end of the end section comes to bear against an axial stop formed on the joining element. Because of this, a predetermined dimension is created on the widened end section. Following this, the weld seam can be produced on this predetermined cross section which more preferably simplifies the automatic manufacture of the high-quality weld joint.
- the axial stop in addition to defining the predetermined cross section for the widened axial end of the one component brings about a definition of the axial position of the weld seam on the joining element. This also simplifies the automatic manufacture of the high-quality weld joint.
- FIG. 1 is a greatly simplified longitudinal section through an assembly prior to the producing of a joint
- FIG. 2 is a sectional view as in FIG. 1 , however during the manufacturing of the joint;
- FIG. 3 is a sectional view as in FIGS. 1 and 2 , however after the manufacturing of the joint;
- FIG. 3 a is a sectional view as in FIG. 3 , however with another embodiment
- FIG. 4 is a simplified sectional view of the assembly during the sliding-in of a joining element in an end section of a component
- FIG. 5 is a representation as in FIG. 4 , however with another configuration
- FIG. 6 is a sectional view through the assembled assembly however with another embodiment.
- FIGS. 7-9 are sectional views as in FIG. 6 , however with further embodiments.
- an assembly 1 comprises two components 2 , 3 , of which at least the one component 2 is tubular in shape.
- the other component 3 can likewise be tubular in shape but in principle it can also have any other shape.
- the other component 3 can be a transition funnel or a flange or a wall.
- the one component 2 in the following is also designated first component 2 while the other component 3 in the following is also designated as second component 3 .
- the assembly 1 additionally comprises a ring-shaped joining element 4 .
- the joining element 4 comprises an outer cone 5 at least on one axial side. With this outer cone 5 the joining element 4 can be pressed into an axial end section 7 of the first component 2 in axial direction 6 indicated by a double arrow or is pressed into the assembly 1 in the assembled state.
- FIG. 1 shows the joining element 4 prior to the pressing-in of its outer cone 5 in the end section 7 of the first component 2 .
- FIG. 2 shows the pressed-in state. It is noticeable that the end section 7 widens upon the pressing-in of the outer cone 5 .
- a circumferential weld seam 8 is produced specifically on an axial end 9 of the end section 7 and on the joining element 4 .
- the second component 3 is additionally mounted with an axial end section 10 on the joining element 4 .
- the widening of the end section 7 of the first component 2 on the outer cone 5 results in a flat and no-play contact between first component 2 and joining element 4 .
- the production of the weld seam 8 is substantially simplified.
- the weld seam 8 can be realized particularly simply with high quality as well as gas-tight.
- More preferably automated production of the weld seam 8 can be simplified since no ring gap between first component 2 and joining element 4 has to be closed, which along the circumference additionally can have a varying gap width.
- the pressing-in of the connecting element 4 in the end section 7 is performed in such a manner that the axial end 9 of the end section 7 is widened to a predetermined cross section. This is an advantage for automated production of the weld seam 8 .
- an axial stop 11 is formed, wherein the pressing-in of the joining element 4 is carried out in such a manner that the axial end 9 of the widening end section 7 comes to bear against said axial stop 11 .
- the predetermined cross section for the axial end 9 of the widening end section 7 is also available.
- an axial position between first component 2 and joining element 4 is defined here.
- the axial stop 11 simplifies automated production of reproducible weld seams 8 of high quality.
- the first component 2 is a cylindrical housing of an exhaust gas treatment device which can be a particle filter or a catalytic converter.
- the first component 2 or the housing 2 serves to accommodate at least one insert 12 for exhaust gas retreatment.
- This insert 12 is a particle filter element or a catalytic converter element.
- the insert 12 consists of a ceramic material such as for example cordierite, and can be manufactured as a monolith, for example through extrusion.
- the insert 12 is enveloped with a bearing mat 13 .
- the housing 2 or the first component 2 is calibrated, which means its cross section is matched with respect to the dimensions of the insert 12 and the bearing mat 13 .
- This matching or calibration regularly takes place in that, through a cross section reduction of the jacket-shaped first component 2 , a predetermined radial gap dimension between the insert 12 and the first component 2 is established in order to realise predetermined radial compression or preloading of the bearing mat 13 . Since the inserts 12 can only be manufactured with comparatively large shape tolerances or dimensional tolerances, the cross sections of the first components 2 also vary after the calibration process. The outer cone 5 of the joining element 4 during the axial pressing-in of the outer cone 5 in the axial end section 7 of the first component 2 now ensures that the respective axial end 9 rests against the joining element 4 gap-free and flat and has the predetermined cross section.
- FIG. 4 shows a configuration wherein the end section 7 has to be widened comparatively greatly until its axial end 9 comes to bear against the stop 11 .
- FIG. 5 shows a configuration where the end section 7 has to be widened comparatively little so that its end 9 comes to bear against the stop 11 .
- the second component 3 can for example be a tubular body. On its end section 10 facing the first component 2 , it has a predetermined cross section.
- the joining element 4 is adapted to this predetermined cross section as a result of which a high-quality weld joint between the second component 3 and the joining element 4 can be produced particularly simply in a conventional manner.
- a circumferential weld seam 14 is likewise suitable for this. Since during the manufacture of the joining element 4 and the second component 3 comparatively close tolerances can be maintained, an outer cone 5 for achieving defined cross section can be omitted here.
- the joining element 4 with this embodiment has a suitable joining region 15 on its other axial side facing away from the outer cone 5 , which simplifies the joining of the second component 3 designed as a tubular body.
- this joining region 15 can have a ring-shaped receiving slot 16 into which the second component 3 dips axially.
- the joining region 15 is designed as a flange 15 .
- the second component 3 according to FIG. 3 a on its end facing the first component 2 can comprise a flange 19 or be formed through such a flange 19 .
- the flange 19 is designed complementarily or symmetrically to the flange 15 .
- the flanges 15 , 19 are joined with one another by means of a clamp 20 , more preferably a V-band clamp 20 .
- a screw joint is likewise conceivable.
- a closed ring-like circumferential sealing element 21 can be arranged.
- the second component 3 can also be a tubular housing, which likewise serves to accommodate at least one exhaust gas treatment insert 12 and, which likewise can be calibrated with respect to its cross section.
- the joining element 4 with this embodiment likewise comprises an outer cone 17 on its other axial end which is pressed into the axial end section 10 of the second component 3 in order to achieve widening of the end section here as well.
- a second axial stop 18 is also formed on the joining element 4 , which defines the axial position and the widened cross section of the axial end section 10 .
- the joining element 4 with the embodiment shown in FIG. 6 , is practically designed mirror-symmetrically, specifically with respect to a symmetry plane which runs vertically to the axial direction 6 .
- the joining element 4 in this example serves for the joining of two components 2 , 3 of an exhaust gas treatment device.
- the joining element 4 as with the embodiment shown in FIG. 6 comprises two outer cones 5 , 17 , wherein here it is indicated that a mirror symmetry of the two outer cones 5 , 17 is not always required.
- the second component 3 is designed as transition funnel with the help of which the first component 2 can be connected to a tubular body which is not shown here, wherein said tubular body, on its end section facing the second component 3 , can have a predetermined cross section to which the complementary end section of the transition funnel, i.e., of the second component 3 , is adapted.
- the second outer cone 17 makes it possible to produce the second component 3 with larger dimensional tolerances in the region of the end section 10 facing the first component 2 .
- the second component 3 is designed as a flange with which the first component can be fastened for example to a tubular body with predetermined cross section or to a wall. It is likewise possible to design the second component 3 itself as a wall which has an opening for connecting the first component, wherein this opening can comprise a predetermined cross section. Insofar as a predetermined opening cross section is present, the desired proper joint between the two components 2 , 3 can be realized with the joining element 4 having a complementary connection section 15 . Insofar however as the opening cross section can vary in a comparatively large tolerance interval, the version of the joining element 4 shown in FIGS. 6 and 7 can be used which has two outer cones 5 , 17 .
- the respective outer cone 5 , 17 in the axial sections shown each has a straight-line profile which is inclined relative to the axial direction 6 .
- other profiles for the respective outer cone 5 , 17 are also conceivable in principle.
- the respective outer cone 5 , 17 in the axial section can have a profile which is concavely curved towards the respective component 2 , 3 .
- the respective ramp contour along its length has a varying incline which rises in the insertion direction.
- the joining element 4 has the function of joining the two components 2 , 3 with each other.
- the joining element 4 has an additional function in addition to this joining function.
- the joining element 4 is designed as a transition funnel which thus realizes a cross-sectional change between the two components 2 , 3 .
- the joining element 4 is designed as a wall through which the first component 2 can be positioned within the second component 3 .
- the second component 3 for example, is a housing which with the help of the respective wall 4 or with the help of the respective joining element 4 can be stiffened or sectioned.
- the joining element 4 can be a thick-walled formed sheet-metal part.
- a wall thickness of the joining element 4 with these embodiments is at least twice as thick as the wall thickness of the first component 2 and/or the second component 3 .
- the formed sheet-metal part can, for example, be produced by means of internal high-pressure forming.
- the joining element 4 can, according to the embodiments of FIGS. 1-7 , practically be also a sintered part or a turned part or a cast part.
- the joining element 4 can be produced from a ferrite steel or from an austenite steel.
- the two components 2 , 3 are then practically also produced of ferrite or of austenite.
- the joining element 4 can be produced of a duplex material, which is a two-phase material which, in its structure, contains a ferrite phase and an austenite phase.
- the connecting element 4 is only arranged on an axial side of the first component 2 in order to join this with a second component 3 . It is clear however that, in principle, a further joining element 4 can also be provided in principle on the other axial side of the first component 2 in order to join the first component 2 there with a third component not shown here.
- the joining technique introduced here is used to manufacture or incorporate an exhaust gas treatment device in an exhaust system.
- the tubular or ring-shaped components shown here, i.e. the first component 2 , the second component 3 and the joining element 4 have cylindrical cross sections, circular cylindrical cross sections, or any other rounded cross sections.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Silencers (AREA)
Abstract
Description
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008049925.0 | 2008-10-02 | ||
DE102008049925 | 2008-10-02 | ||
DE102008049925A DE102008049925A1 (en) | 2008-10-02 | 2008-10-02 | Connection method for tubular components |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100083482A1 US20100083482A1 (en) | 2010-04-08 |
US10859189B2 true US10859189B2 (en) | 2020-12-08 |
Family
ID=41794987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/566,294 Active 2035-06-01 US10859189B2 (en) | 2008-10-02 | 2009-09-24 | Joining method for tubular components |
Country Status (2)
Country | Link |
---|---|
US (1) | US10859189B2 (en) |
DE (1) | DE102008049925A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9863559B2 (en) * | 2013-12-11 | 2018-01-09 | Faurecia Emissions Control Technologies, Usa, Llc | Thin wall welding |
DE102015224453A1 (en) * | 2015-12-07 | 2017-06-08 | Eberspächer Exhaust Technology GmbH & Co. KG | Silencer and manufacturing process |
GB2594894B (en) * | 2016-11-30 | 2022-05-25 | Cummins Emission Solutions Inc | Temperature estimation for sensor |
DE102019115771A1 (en) * | 2019-06-11 | 2020-12-17 | Eberspächer Exhaust Technology GmbH & Co. KG | Method for producing a connection assembly, in particular on an exhaust system component of an exhaust system of an internal combustion engine, and an exhaust system component |
JP7384854B2 (en) * | 2021-05-26 | 2023-11-21 | フタバ産業株式会社 | Exhaust pipe |
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-
2008
- 2008-10-02 DE DE102008049925A patent/DE102008049925A1/en not_active Ceased
-
2009
- 2009-09-24 US US12/566,294 patent/US10859189B2/en active Active
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Also Published As
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DE102008049925A1 (en) | 2010-04-08 |
US20100083482A1 (en) | 2010-04-08 |
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